Illinois announced its first probable case of monkeypox on Thursday — one of a small, but growing number of cases across the country.
The case is in a male Chicagoan who recently traveled to Europe, according to the Chicago and Illinois departments of public health. The person did not require hospitalization and is in good condition, isolating at home.
The case remains isolated, and “at this time there is no indication there is a great risk of extensive local spread of the virus, as monkeypox does not spread as easily as the COVID-19 virus,” according to a news release from the health departments.
The city and state health departments are working with the Centers for Disease Control and Prevention to identify people who may have been in contact with the infected person. Initial testing was conducted at an Illinois Department of Public Health laboratory, and the CDC is now conducting testing to confirm the result.
In all, 19 confirmed cases have been reported nationwide, according to the CDC.
This 2003 electron microscope image made available by the Centers for Disease Control and Prevention shows mature, oval-shaped monkeypox virions, left, and spherical immature virions, right, obtained from a sample of human skin associated with the 2003 prairie dog outbreak.
Monkeypox is a rare viral illness that typically begins with flu-like symptoms and swelling of the lymph nodes before progressing to a rash on the face and body. The illness typically lasts two to four weeks.
It can be spread from person-to-person through close physical contact with monkeypox sores; items that have been contaminated with fluids or sores, such as clothing or bedding; or through respiratory droplets during prolonged face-to-face contact, according to the state and city health departments.
Anyone can get monkeypox, but, so far, many of the cases have been among gay, bisexual, and other men who have sex with men, according to the CDC.
Monkeypox is endemic to parts of central and west Africa but has been spreading beyond that region in recent weeks, to countries that don’t usually have cases. In Africa, people can be exposed through bites or scratches from rodents and small mammals, preparing wild game, or coming into contact with an infected animal or animal products.
Confirmed U.S. cases have been reported in California, Colorado, Florida, Georgia, Massachusetts, New York, Pennsylvania, Utah, Virginia and Washington.
People with new, unexplained rashes, sores or symptoms should see a health care provider to see if they have the virus, and they should avoid being intimate with anyone until the provider sees them, according to the state and local health departments.
Today’s top pics: Scotland and Ukraine World Cup 2022 qualifying play-off and more
People walk along The Mall in London, Wednesday, June 1, 2022, ahead of the start of the Queen’s Jubilee weekend. Britain will celebrate Queen Elizabeth II’s 70 years on the throne with four days of festivities beginning with her ceremonial birthday parade on June 2, 2022. The 96-year-old monarch’s Platinum Jubilee will kick off with a full staging of Trooping the Color, the parade of more than 1,400 soldiers that marks the queen’s official birthday. (AP Photo/Alberto Pezzali)
A Ukraine supporter stands on the steps outside Hampden Park, ahead of the World Cup Qualifying soccer match between Scotland and Ukraine at Hampden Park stadium in Glasgow, Scotland, Wednesday, June 1, 2022. (AP Photo/Scott Heppell)
A woman wears a band and flowers in the Ukrainian flag colours before the World Cup 2022 qualifying play-off soccer match between Scotland and Ukraine at Hampden Park stadium in Glasgow, Scotland, Wednesday, June 1, 2022. (AP Photo/Scott Heppell)
The Ukrainian team celebrate at the final whistle of the World Cup 2022 qualifying play-off soccer match between Scotland and Ukraine at Hampden Park stadium in Glasgow, Scotland, Wednesday, June 1, 2022. (Malcolm Mackenzie/PA via AP)
Argentina’s Lionel Messi, left, challenges for the ball with Italy’s Giacomo Raspadori during the Finalissima soccer match between Italy and Argentina at Wembley Stadium in London , Wednesday, June 1, 2022. (AP Photo/Matt Dunham)
Argentina’s players celebrate with Lionel Messi, top, after winning the Finalissima soccer match between Italy and Argentina at Wembley Stadium in London , Wednesday, June 1, 2022. (AP Photo/Matt Dunham)
Argentina’s Lionel Messi holds a trophy as he celebrates with his teammates after winning the Finalissima soccer match between Italy and Argentina at Wembley Stadium in London , Wednesday, June 1, 2022. Argentina won 3-0. (AP photo/Frank Augstein)
Student protesters brace themselves for a police water cannon outside La Moneda presidential palace in Santiago, Chile, Wednesday, June 1, 2022. Students are protesting on the day Chilean President Gabriel Boric gives his first annual address as president, while continuing to demand free, non-sexist education as well as fair transportation prices, more food vouchers and the cancelation of student debt. (AP Photo/Esteban Felix)
Actor Amber Heard hugs her lawyer Elaine Bredehoft after the verdict was read at the Fairfax County Circuit Courthouse in Fairfax, Va, Wednesday, June 1, 2022. The jury awarded Johnny Depp more than $10 million in his libel lawsuit against ex-wife Amber Heard. It vindicates his stance that Heard fabricated claims that she was abused by Depp before and during their brief marriage. But the jury also found in favor of Heard, who said she was defamed by a lawyer for Depp.(Evelyn Hockstein/Pool via AP)
Norway’s Casper Ruud celebrates winning his quarterfinal match against Denmark’s Holger Rune in four sets, 6-1, 4-6, 7-6 (7-2), 6-3, at the French Open tennis tournament in Roland Garros stadium in Paris, France, Thursday, June 2, 2022. (AP Photo/Michel Euler)
German Chancellor Olaf Scholz attends a news conference with Croatian Prime Minister Andrej Plenkovic during a meeting at the chancellery in Berlin, Germany, Wednesday, June 1, 2022. (AP Photo/Markus Schreiber)
A Palestinian flag is removed from a building by Israeli authorities after being put up by an advocacy group that promotes coexistence between Palestinians and Israelis, in Ramat Gan, Israel, Wednesday, June 1, 2022. (AP Photo/Oded Balilty)
Israeli troops blow up the house of Palestinian militant Diaa Hamarsheh in the West Bank village of Yabed, Thursday, June 2, 2022. Hamarsheh was shot and killed by Israeli police after he killed three Israelis and two Ukrainian citizens in a deadly shooting attack in Bnei Brak on March 29, 2021. Israeli officials say the demolitions deter future attacks, while rights groups view it as a form of collective punishment. (AP Photo/Majdi Mohammed)
Colorado Rockies’ Charlie Blackmon, left, douses Brendan Rodgers after the latter’s two-run home run off Miami Marlins relief pitcher Cole Sulser during the 10th inning of the second game of a baseball doubleheader Wednesday, June 1, 2022, in Denver. (AP Photo/David Zalubowski)
Miami Marlins center fielder Bryan De La Cruz pulls in a fly ball hit by Colorado Rockies’ Brian Serven during the ninth of the second game of a baseball doubleheader Wednesday, June 1, 2022, in Denver. (AP Photo/David Zalubowski)
U.S. forward Tim Weah celebrates his goal during the first half of the team’s international friendly soccer match against Morocco, Wednesday, June 1, 2022, in Cincinnati. (AP Photo/Jeff Dean)
Clothes dry on the top of a shack in the Ticlio Chico area on the outskirts of Lima, Peru, Wednesday, June 1, 2022. Twenty-five percent of Peruvians live in poverty, according to Peru’s statistics institute INEI, amid global inflation. (AP Photo/Martin Mejia)
Wales’s Chris Mephan, right, fights for the ball with Poland’s Karol Swiderski, bottom, during the UEFA Nations League soccer match between Poland and Wales, at the Tarczynski Arena Wroclaw in Wroclaw, Poland, Wednesday, June 1, 2022. (AP Photo/Michal Dyjuk)
A girl poses with a weapon at a stand set up by Romania’s army special forces at the Palace of the Parliament, the second largest administrative building in the world after the Pentagon, as people took the opportunity to visit it for free on International Children’s Day in Bucharest, Romania, Wednesday, June 1, 2022. More than fifteen thousand children and adults visited the communist era building, also known as the House of the People, according to the organizers of the event.(AP Photo/Vadim Ghirda)
An elderly woman walks next to a building damaged by an overnight missile strike in Sloviansk, Ukraine, Wednesday, June 1, 2022. (AP Photo/Andriy Andriyenko)
Students from Shea High School walk out to protest the nation’s gun policies, Wednesday, June 1, 2022, in Pawtucket, R.I. Organizer Zachary Pinto, 17, said his fellow students told him they were frustrated, angry and in pain after the last week’s school shooting in Uvalde, Texas. He led students to a rally at city hall where they were then joined by other local high school students. (AP Photo/David Goldman)
Mick Jagger, of the band the Rolling Stones, performs during their Sixty Stones Europe 2022 tour at the Wanda Metropolitano stadium in Madrid, Spain, Wednesday, June 1, 2022. (AP Photo/Manu Fernandez)
Matthew Solano leaves sunflowers at a memorial to honor the victims killed in last week’s elementary school shooting in Uvalde, Texas, Wednesday, June 1, 2022. (AP Photo/Jae C. Hong)
Pope Francis is helped by his aide Monsignor Leonardo Sapienza, left, as he walks with a cane to his weekly general audience in St. Peter’s Square at The Vatican, Wednesday, June 1, 2022. (AP Photo/Gregorio Borgia)
Residents pose for photos along the bund, Wednesday, June 1, 2022, in Shanghai. Traffic, pedestrians and joggers reappeared on the streets of Shanghai on Wednesday as China’s largest city began returning to normalcy amid the easing of a strict two-month COVID-19 lockdown that has drawn unusual protests over its heavy-handed implementation. (AP Photo/Ng Han Guan)